Phylum [Vertebrata] (Lamarck, 1801)
   Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825
     1 Subclass †Labyrinthodontia Meyer, 1842 see Class Amphibia Linnaeus, 1758
     2 Subclass †Lepospondyli Zittel, 1888 see Superorder Lepospondyli Zittel, 1887
     3 Order Urodela Dumeril, 1806 see Order Caudata Scopoli, 1777
     4 Order †Proanura Romer, 1945
     5 Order Anura Fischer von Waldheim, 1813
     6 ?Family †Diadectidae Cope, 1880